Office work $164 - PMG $79.80
https://www.officeworks.com.au/shop/officeworks/p/tp-link-ac…
Well reviewed WiFi extender
Maximum Coverage - Extend Wi-Fi coverage by up to 929 m2(10,000sq. ft)
AC1750 Dual Band Wi-Fi - Simultaneous 450Mbps on 2.4GHz + 1300Mbps on 5GHz
Three Antennas - Three adjustable external antennas provide optimal Wi-Fi coverage and reliable connections
Gigabit Ethernet port - Act as a wireless adapter to connect a wired device to your network at Gigabit speed
Intelligent Signal Light - Help to find the best location for optimal Wi-Fi coverage by showing the signal strength
AP Mode - Create a new Wi-Fi access point to enhance your wired network with Wi-Fi capability
TP-Link Tether App - Easily access and manage your network using any iOS or Android mobile device
Ultimate Compatibility - Extend the range of any Wi-Fi router or wireless access point
A good price, indeed, but "Extend Wi-Fi coverage by up to 929 m2" is really just by a 9.7metre radius.